The Schrödinger wave function for a stationary state of an atom in spherical polar coordinates \((r, \theta, \phi)\) is
\(\psi=A f(r) \sin \theta \cos \theta e^{i \phi}\)
where A is the normalization constant. The eigenvalue of \(\widehat{L_z}\)for this state is
1
2h
2
h
3
-2h
4
-h